Public bug reported:

I found that some of the Lenovo Lenovo Essential Wireless Keyboard Fn
keys don't work. First one is Mute mic (Fn+F4), second one is Scissors
(Fn+F10, probably hotkey for Windows Snipping Tool for selective
screenshot).gnome-control-panel, xev and evtest doesn't react on
pressing these buttons.

Here what I was able to get via sudo cat /dev/usb/hiddev0 | hexdump -v -e '/1 
"%02X\n"' :
For Mute key
00 00 00 FF DC 00 00 00 00 00 00 FF 00 00 00 00 00 00 00 FF 00 00 00 00

For Scissors
00 00 00 FF DB 00 00 00 00 00 00 FF 00 00 00 00 00 00 00 FF 00 00 00 00

ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: linux-image-generic 5.11.0.16.17
ProcVersionSignature: Ubuntu 5.11.0-16.17-generic 5.11.12
Uname: Linux 5.11.0-16-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu65
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  asudak     2085 F.... pulseaudio
CasperMD5CheckResult: unknown
CurrentDesktop: GNOME
Date: Thu May  6 22:36:50 2021
InstallationDate: Installed on 2021-04-13 (23 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 174f:1800 Syntek Integrated RGB Camera
 Bus 001 Device 003: ID 8087:0029 Intel Corp. AX200 Bluetooth
 Bus 001 Device 002: ID 17ef:60a9 Lenovo Lenovo Essential Wireless Keyboard and 
Mouse Combo
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO F0FA0066UA
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-16-generic 
root=UUID=9ef69356-31e9-488f-9a6b-99e10c0ed863 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-5.11.0-16-generic N/A
 linux-backports-modules-5.11.0-16-generic  N/A
 linux-firmware                             1.197
SourcePackage: linux
UpgradeStatus: Upgraded to hirsute on 2021-04-18 (17 days ago)
dmi.bios.date: 03/31/2021
dmi.bios.release: 1.32
dmi.bios.vendor: LENOVO
dmi.bios.version: O4VKT32A
dmi.board.asset.tag: INVALID
dmi.board.name: 371F
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40688 WIN 3424143288435
dmi.chassis.type: 13
dmi.chassis.vendor: LENOVO
dmi.chassis.version: 0.1
dmi.ec.firmware.release: 1.13
dmi.modalias: 
dmi:bvnLENOVO:bvrO4VKT32A:bd03/31/2021:br1.32:efr1.13:svnLENOVO:pnF0FA0066UA:pvrIdeaCentreAIO527IMB05:rvnLENOVO:rn371F:rvrSDK0J40688WIN3424143288435:cvnLENOVO:ct13:cvr0.1:
dmi.product.family: IdeaCentre AIO 5 27IMB05
dmi.product.name: F0FA0066UA
dmi.product.sku: LENOVO_MT_F0FA_BU_Lenovo_FM_IdeaCentre AIO 5 27IMB05
dmi.product.version: IdeaCentre AIO 5 27IMB05
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug hirsute

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https://bugs.launchpad.net/bugs/1927545

Title:
  Some of Lenovo Lenovo Essential Wireless Keyboard Fn keys doesn't work

Status in linux package in Ubuntu:
  New

Bug description:
  I found that some of the Lenovo Lenovo Essential Wireless Keyboard Fn
  keys don't work. First one is Mute mic (Fn+F4), second one is Scissors
  (Fn+F10, probably hotkey for Windows Snipping Tool for selective
  screenshot).gnome-control-panel, xev and evtest doesn't react on
  pressing these buttons.

  Here what I was able to get via sudo cat /dev/usb/hiddev0 | hexdump -v -e '/1 
"%02X\n"' :
  For Mute key
  00 00 00 FF DC 00 00 00 00 00 00 FF 00 00 00 00 00 00 00 FF 00 00 00 00

  For Scissors
  00 00 00 FF DB 00 00 00 00 00 00 FF 00 00 00 00 00 00 00 FF 00 00 00 00

  ProblemType: Bug
  DistroRelease: Ubuntu 21.04
  Package: linux-image-generic 5.11.0.16.17
  ProcVersionSignature: Ubuntu 5.11.0-16.17-generic 5.11.12
  Uname: Linux 5.11.0-16-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu65
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  asudak     2085 F.... pulseaudio
  CasperMD5CheckResult: unknown
  CurrentDesktop: GNOME
  Date: Thu May  6 22:36:50 2021
  InstallationDate: Installed on 2021-04-13 (23 days ago)
  InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 174f:1800 Syntek Integrated RGB Camera
   Bus 001 Device 003: ID 8087:0029 Intel Corp. AX200 Bluetooth
   Bus 001 Device 002: ID 17ef:60a9 Lenovo Lenovo Essential Wireless Keyboard 
and Mouse Combo
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO F0FA0066UA
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-16-generic 
root=UUID=9ef69356-31e9-488f-9a6b-99e10c0ed863 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-5.11.0-16-generic N/A
   linux-backports-modules-5.11.0-16-generic  N/A
   linux-firmware                             1.197
  SourcePackage: linux
  UpgradeStatus: Upgraded to hirsute on 2021-04-18 (17 days ago)
  dmi.bios.date: 03/31/2021
  dmi.bios.release: 1.32
  dmi.bios.vendor: LENOVO
  dmi.bios.version: O4VKT32A
  dmi.board.asset.tag: INVALID
  dmi.board.name: 371F
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40688 WIN 3424143288435
  dmi.chassis.type: 13
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: 0.1
  dmi.ec.firmware.release: 1.13
  dmi.modalias: 
dmi:bvnLENOVO:bvrO4VKT32A:bd03/31/2021:br1.32:efr1.13:svnLENOVO:pnF0FA0066UA:pvrIdeaCentreAIO527IMB05:rvnLENOVO:rn371F:rvrSDK0J40688WIN3424143288435:cvnLENOVO:ct13:cvr0.1:
  dmi.product.family: IdeaCentre AIO 5 27IMB05
  dmi.product.name: F0FA0066UA
  dmi.product.sku: LENOVO_MT_F0FA_BU_Lenovo_FM_IdeaCentre AIO 5 27IMB05
  dmi.product.version: IdeaCentre AIO 5 27IMB05
  dmi.sys.vendor: LENOVO

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